Answer / sateesh

for higher frequencies we can use MOsfet
for lower frequencies we can use igbt and rating of igbts r
higer compared to MOSFETs

Answer / gopaul

mos controlled thyristor (mct)

Answer / fat-s0

It depends on the application. A good power electronics
book usually shows a good image of the power and frequency
range in which most switches will find optimal use.

Answer / dinesh kumar

Silicon Controlled Rectifier (scr)

Why not connect relay Y phase for over current and earth fault

1 Answers   HB,

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How can I communicate with an Areva MiCOM P121 relay by RS485 port? In other word, which command can I send and what information can I have recieved? please send some refrences, please. thanks

3 Answers  

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what is the EMF

2 Answers  

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What happens when DC supply is given to transformer

4 Answers   CESC, IBM,

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Pls explain about vfd control?Where it is used, Give some example?

3 Answers   Siemens,

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What is the safe limit of voltage between earth and neutral in india.

2 Answers   Incepta Pharmaceuticals,

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what is star delta starter? how it works? give its control and power diagram.

0 Answers   Bhel, Point to Point Solution, Star Wire,

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what is the full Form of AAC ant conductor?

5 Answers  

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What is 100% protection of generator? Why 95% protection is used not 100%?

9 Answers   NTPC,

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what is the role of MPU in DG set

1 Answers   Weltech Engineering,

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What do you mean by class of CTs and what is the meaning of cl 1.0, cl5P10, cl 10P10 CTs?

3 Answers  

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can we use ZNyn11 transformer instead of Dyn11 transformer in distribution for effectively eliminating harmonics from the industrial loads.

0 Answers   DEWA,

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